USL Bi-pin mount
- Thread starter wally0206
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Knight Lights
Enlightened
- Joined
- Jun 5, 2006
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- 215
No,
The USL uses a specially designed and machined aluminum heat sink that the socket fits into and is then screwed down.
Bill
The USL uses a specially designed and machined aluminum heat sink that the socket fits into and is then screwed down.
Bill
js
Flashlight Enthusiast
Knight Lights is correct. In addition, it is a GY6.35 base. Also, the "can" which holds the socket, can be moved forward (towards head) and back by loosening an allen wrench set-screw, moving the can, then re-tightening. The design is elegant and effective. I believe that Otokoyama is responsible for the design, if not for the actual machining of these cans (although he may have done that as well).
MSI
Enlightened
Modamag created the cans for the USL. They can also be used with G4 bases. Centering may not be so good as with the Kiu kit because of the set screw but they are much more flexible when it comes to using different bulbs where the difference in vertical placement of the filament is large. Just move the can up or down depending on what bulb you use. They are also much easier to assemble than a Kiu kit.
missionaryman
Enlightened
does anyone have a picture of one?
js
Flashlight Enthusiast
The set-screw does not practically affect the centering, as each lamp in any ceramic holder must be tweaked and pushed until the filament is positioned for best beam. A 10 thousandths of an inch offset is negligible.
bwaites
Flashlight Enthusiast
There are pictures in the USL threads. Codemans USL Thread Index is probably the easiest place to start.
https://www.candlepowerforums.com/threads/94000
Actually, the design was Modamags, after looking at a proto that Otokoyama had designed that was a small work of art. Otokoyama's proto allowed adjustment with threads once it was secured inside the barrel of the mag. It was very labor intensive and would have increased the cost of the USL significantly, although it was also one of the coolest pieces of machine work I have ever seen for a flashlight.
Bill
https://www.candlepowerforums.com/threads/94000
Actually, the design was Modamags, after looking at a proto that Otokoyama had designed that was a small work of art. Otokoyama's proto allowed adjustment with threads once it was secured inside the barrel of the mag. It was very labor intensive and would have increased the cost of the USL significantly, although it was also one of the coolest pieces of machine work I have ever seen for a flashlight.
Bill
